Oeiras Weather in May
During May, Oeiras experiences pleasant daytime temperatures of 20°C (68°F) and cooler nights around 15°C (59°F). Some rainfall is typical during this period.
Rainfall in Oeiras in May
Looking at the last 30 years, the data shows about 8 days with rain, averaging 44 mm (1.7 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Oeiras in May
Oeiras has perfect weather in May, with days reaching 20°C (68°F) and nights cooling to 15°C (59°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Oeiras in May
Enjoy a sunny month with about 316 hours of sunshine, the clear skies make Oeiras even more beautiful.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August, September and October typically offer the best weather for Oeiras.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Oeiras's climate page.
Oeiras Temperature in May
Min Temperature
15°C (59°F)
Max Temperature
20°C (68°F)
Chance of Rain
28%
Precipitation
44 mm (1.7 in)
Rainy days
8 days
Humidity
74% *
Sunshine
316 hours *
Percentage Sunshine
71% *
Best Places in Portugal in May
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in May →
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What to Wear in Oeiras in May
For Oeiras in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Oeiras in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Oeiras's climate page.
Temperature Rainfall Sunshine Humidity
See the full Oeiras climate overview or explore weather in Portugal.
